Improvement in the dobersiner hydrogen lighter



No. 36,971. PATENTED NOV. 18, 1862.

' I. TAYLOR 66 R. W. BROWN.

DOBERBINBR HYDROGEN LIGHTER.

U ITED STATES PATENT OFFICE.

OHN TAYLOR AND It. \V. BROWN, OF JVESTERLY, RHODE ISLAND.

IMPROVEMENT IN THE DO BERSINER HYDROGEN LlGHTER.

Specification forming part of Letters Patent No. 36,97E, dated November18, l8"? T0 on whom it nmy concern.-

Be it known that we. JOHN TAYLOR and Rus- SELL W. BROWN, of Westerly, inthe county of Washington and State of Rhode Island, have inventedcertain new and useful Improvements in Hydrogen Lighters for Domesticand other Purposes; and we do hereby declare thatthe following is a fulland exact description thereof, reference being had to the accompanyingdrawings, in which- Figure 1 is a vertical section of our invention; andFigs. 2 and 3 are magnified sections of the valve, Fig.2 showing thevalve closed, and Fig. 3 the same open.

Our invention relates to the construction of the valve,whe'rebya verysimple, eflicient, and cheap valve is secured, which is not liable tobecome leaky by use.

To enable others skilled in the art to make and use our invention, wewill proceed to describe its construction and operation by the aid ofthe drawings and letters of reference thereon, the sameletters referringtoli'ke parts in all the figures.

A is ajar of glass or earthenware having a lid, B, secured thereto. Fromthe under side of this lid is suspended a bell-shaped glass,G, extendingnearly to the bottom of A, as represented, and within the bell G issuspended a piece of zinc, D. A mixture of sulphuricacid and water ispoured into thejar A, and rising in the bell attacks the zinc, thusgenerating hydrogen gas, which collects in the bell and drives out thediluted acid until the zinc is no longer exposed to its action, when theformation of gas ceases. These parts and their action are similar tothose heretofore known.

In the lid 13, and extending into the hell 0, is a nozzle, E, of theform represented. A chamber, a, is bored in the rear end, as represented, and a passage, 6, leads therefrom to the interior of the bell.Another passage, e, leads from this chamber to the front of then0zzle,as represented, and the openings to these two passages are nearthe centerof the chamber 6. In the base of this chamber and surroundingthe opening of the two passages e and e is an .annular lip or flange, e.A plunger, F, is fitted to play in the chamber 6 and to receive on itsend a piece of india-rubber, G. -A spring, H, forces the plungertowardthebase of the chamher and causes the rubber G to tightly embrace thelip or flange e, and to enter the cavity within it, thus closing theopenings of both the holes or passages eand e", and preventing theescape of gas through the same. A lever, I, is provided for lifting theplunger F and opening the holes e and e topern'iit the flow of gas fromthe-hell. A stop-screw, i, is provided to so gage the action of thelever I that lieve'd as to allow the holes 6 and e to be opened and gasto pass around from one to the other, the rubber Gcannot be sumcientlylifted to relieve its pressure upon the lip 6*, so as to permittheescape ofgas into the chamber 6. v The spring H is provided with a yoke,h, and screw h, whereby it maybe tightened to produce the requiredpressure to causethe rubber to tightly close both holes e and c. The gasescaping from ev impinges upon a piece of platinasponge, K, in theordinary manner, and is thereby ignited, and maybe used to ignite asplinter of wood or other object placed therein.

In preparing the valve G we coat it with me-- tallic bronze-powder, toprevent it fromst-icking to the surface of the valve-seat, in thefollowing manner: We first burn the surface of .the rubber so as to,cause it to firmly adhere to the socket in F, and then place ittherein.The portion which remains exposed is covered with bronze-powder, whichadheres to the surface and forms a metallic coating, which, while iteffectually prevents any adhering of the rub beer to the valve-seat, inno way interferes with the elasticity of the rubber. This coating isrepresented in the drawings by a thin yellow line.

As hydrogen-igniting apparatus has been heretofore constructed, the cockbywhich the gas was allowed to flow to the platina sponge was veryliable to wear and become leaky, when the gas was constantly escapingand the useof the apparatus thereby rendered expensive and annoying.

By our improved construction the following advantages aresecured: Thevalve may always be kept tight with no perceptible wear. The rubberfitting always on thelip e prevents any escape of gas, exceptthrough'the passage e, and the strength of the spring H is easilyadrubber G to tightly close one or both the hole: e or e. It will beseen that by this arrange l ment of theholes and valves 2. doublesecurit while the pressure of thespring H is so far re justed by meansof the screw h to cause the against leakage is obtained, for if eitherof these holes be stopped the passage is efi'eotually closed, even ifthe other beleft open. The valve G is very certain to close one, even ifthe pressure of the spring be not quite sufficient to close both.

. Our valve is self-closing and cannot be left open for the escape ofgas like the ordinary cook. This is an essential advantage in doin'estieuse, where inexperienced persons are liable to use the apparatus. p

By the coatingof therubbcr valve G with I bronze-powderall liability toderangement from' adhesion of the valve to its seat is avoided. Thenozzle E and the other exterior parts may be made in various forms ordesigns to please the taste of the maker or customer without interfering with the proper action of ourinvention, and the whole may beinclosed in a case to avoid the danger of breakage, if desired.

Having now fully described ourinve ntion,

what we claim as new, and desire to secure by Letters Patent, is-

1. The arrangement of the two openings e and e and the surrounding lipe, or its equivalent, with the elastic valve G, as and for the purposeherein set forth.

2. The employment of the adj ustable spring H, in combination with theabove, for the purpose described.

